======================== unified (from filesystem) ========================
                                         'bitrate'  '320.012'
                                        'duration'  '287'
                                          'artist'  'Underworld'
                                     'text_people'  ''
                                         'release'  'Ministry of Sound: Chilled 199'
                                           'title'  'Second Hand'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'dance', 'techno', 'electronic', 'trance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted;electronic-th-trance'
                                             'bpm'  '130.063'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Ministry of Sound: Chilled 199'
'TBPM' (BPM (beats per minute))                     '130.063'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted', 'electronic-th-trance']
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Second Hand'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Underworld'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '18'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['electronica', 'dance', 'techno', 'electronic', 'trance']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.25 dB'
'TXXX:replaygain_track_peak'                        '0.663443'

========================== row from database ==========================
                                              'id'  1282695
                                            'path'  /data/Music/Bulk/00poprockelectronic/Chilled/Chilled 1991-2008 Disc 1 mp3/18 - Underworld - Second Hand.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  287
                                           'genre'  electronic-unsorted;electronic-th-trance
                                        'filesize'  11518905
                                           'mtime'  1621696145
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1991 2008 Disc mp3 18 electronic unsorted;electronic th trance
                                      'tag_artist'  Underworld
                                     'tag_release'  Ministry of Sound: Chilled 199
                                       'tag_title'  Second Hand
                                             'bpm'  130.063
                                    'search_title'  'hand':2 'second':1
                                   'search_artist'  'underworld':1
                                  'search_release'  '199':6 'chilled':5 'ministry':1 'of':2 'sound':3,4
                                     'search_rest'  '00poprockelectronic':1 '18':6 '1991':2 '2008':3 'disc':4 'electronic':7,9,11 'mp3':5 'th':12 'trance':13 'unsorted':8,10
                                    'search_combo'  '00poprockelectronic':10 '18':15 '199':9C '1991':11 '2008':12 'chilled':8C 'disc':13 'electronic':16,18,20 'hand':2A 'ministry':4C 'mp3':14 'of':5C 'second':1A 'sound':6C,7C 'th':21 'trance':22 'underworld':3B 'unsorted':17,19
                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-4', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'dance', 'techno', 'electronic', 'trance']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696144.5972512  (2021-05-22 17:09:04)
                             'size'  11518905